[招待講演] THz帯無線システムの長距離化とモバイルネットワークへの応用

概要

High-speed radio transmission can be realized by using THz-bands, where wide frequency bands are available for various services. However, due to large free space propagation loss and large atmospheric attenuation, the transmission distance would be smaller than a few hundred meters, Therefore, many base stations and terminals are required to offer general purpose nation-wide radio services. This paper describes basic characteristics of THz links to discuss issues in design of THz-wave radio systems. Research trends of THz-wave technologies are also reviewed from the point of view of a figure of merit defined by a product of the carrier frequency and spectral efficiency, to discuss the significance of spectral efficiency enhancement in the high-frequency region.

Keywords THz，high-speed transmission，transmission distance，interference